1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Step2247 [10]
3 years ago
10

Find the length of RS. A. 40 units B. 8 units C. About 6.3 units D. About 2.8 units

Mathematics
1 answer:
Blizzard [7]3 years ago
5 0

Given:

The two points on the graph are R(-2,-4) and S(-8,-6).

To find:

The length of RS.

Solution:

Distance formula: The distance between two points is

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Using the distance formula, the distance between R(-2,-4) and S(-8,-6) is

d=\sqrt{(-8-(-2))^2+(-6-(-4))^2}

d=\sqrt{(-8+2)^2+(-6+4)^2}

d=\sqrt{(-6)^2+(-2)^2}

d=\sqrt{36+4}

On further simplification, we get

d=\sqrt{40}

d=6.32455532

d\approx 6.3

Therefore, the length of AB is about 6.3 units. So, the correct option is C.

You might be interested in
Which expressions are equivalent to k/5 Choose two answers
lozanna [386]

Answer:

c i think                                                                              

i remember having this question

8 0
3 years ago
Read 2 more answers
The grocery store is located at a point on a coordinate plane with the same y-coordinate as the bank but with the opposite x-coo
Alexxandr [17]
Across the y axis. This question becomes easier if you graph it out in your head. Let's say the bank is at (2,2). Because the grocery store has an opposite x coordinate, the bank would be at (-2,2). If you look at this in your head, they are not even on different sides of the x axis, and therefore must be reflected across the y axis.
4 0
3 years ago
Read 2 more answers
Will give brainliest to correct answer! Given that cos Ф=-8/17 and sin Ф is negative, determine the value of tan Ф.
Kipish [7]

Answer: option 3 is the correct answer

Step-by-step explanation:

Let us look at the various trigonometric ratios

Sin Ф = opposite side/ hypotenuse

Cos Ф = adjacent side / hypotenuse

Tan Ф = opposite side / adjacent side

Therefore, tan Ф = sin Ф / cos Ф

This means that if cos Ф=-8/17 and sin Ф is negative, then the hypotenuse is negative

To determine the adjacent side, we will apply Pythagoras theorem

Hypotenuse ^2 = opposite ^2 + adjacent ^2

-17^2 = 8^2 + adjacent^2

adjacent^2 = 289 - 64 = 225

adjacent = √225 = 15

tan Ф = 8/15

5 0
3 years ago
School a has 18 staff and 225 students.
Pavel [41]

Answer:

School A

Step-by-step explanation:

School A has a ratio of 18/225 = 2/25 staff to students
School B has a ratio of 23/322 = 2/28 = 1/14 staff to students
Assuming that a better ratio means more staff per students School A has a better ratio

6 0
3 years ago
F left parenthesis x right parenthesis equals 9 x cubed plus 2 x squared minus 5 x plus 4 and g left parenthesis x right parenth
Jet001 [13]
The answer is 2x(2x²+x+1).

When we subtract polynomials we combine like terms:
(9x³+2x²-5x+4)-(5x³-7x+4)

9x³-5x³=4x³
2x²- 0 = 2x²
-5x--7x=-5x+7x=2x
4-4=0

This gives us 
4x³+2x²+2x

Each of these is divisible by 2, and each has an x, so we factor those out:
2x(                        )

4x³/2x = 2x²:
2x(2x²                   )

2x²/2x=x:
2x(2x²+x               )

2x/2x = 1:
2x(2x²+x+1)
3 0
3 years ago
Other questions:
  • Help 50 PTS
    11·1 answer
  • write an equation in slope intercept form parallel to the line y-4=3(x-1) and traveling through the point (-4,3)
    7·2 answers
  • an eagle leaves her nest on the side of a cliff. she soars upward 60 ft and then dives 80 ft. what is her change in elevation af
    15·1 answer
  • Describe in words the region of R3 reperesented by the equations or inequalities y2+z2=16
    14·1 answer
  • A family is purchasing 17 tickets for a downtown walking tour. Adult tickets are $10, child tickets are $7, and senior tickets a
    9·1 answer
  • Brainly the polynomial x 3 + 5x 2 - ­57x -­ 4189 expresses the volume, in cubic inches, of a shipping box, and the width is (x+3
    15·1 answer
  • Find the area of this rectangle in<br> i) cm2<br> ii) mm2<br> 19mm<br> 2.3cm
    14·2 answers
  • Please help!!!!!!!!!!!
    10·1 answer
  • From a hot-air balloon, Jace measures a 31° angle of depression to a landmark that's
    6·1 answer
  • 3 liters of water are shared equally by 5 people how much water does each person get? division equation to represent the situati
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!